铁饮食参考摄入量成人男子AI值为20mg/d,女子AI值为15mg/d。( )
参考答案:错
How many ____________ can you see?[ ]
A. bottles of milk
B. water
C. bottles of milks
Ken Johnson is _____ great actor, and Shaolin Temple is _____ action movie.[ ]
A. an; an
B. an; a
C. a; an
D. a; a